Generate a Flat toolpath

1. On the Manufacture workspace toolbar, click Milling > 3D > Flat.

   The Flat dialog opens.

2. On the Tool tab, click Select to pick a tool. In the left panel of the dialog, from the Fusion Library, pick a tool from the Milling Tools library.

   Tip: Flat bottom and bull-nosed end mills are best suited for the Flat finishing toolpaths.

3. On the Geometry tab, you may contain the toolpath area with a Machining Boundary and then select the edge or a sketch that represents the area to be machined. If no selection is made, the entire model will be evaluated for machining within the defined Stock box.

4. (Optional) To detect how much material has been removed from previous operations and to only machine the remaining material, click the Rest Machining checkbox.

5. (Optional) To cut across holes and pockets instead of going around them:

   • Select Machine Over and Into Holes/Pockets.
   • Set Max Hole Size larger than the hole diameter you want to cap.

6. On the Passes tab, from the Type drop-down menu, select one of three types of toolpath to generate over flat areas of the model: Offset (pocket), Parallel, or Profile. The Profile type uses a single boundary pass and shares common settings.

7. If you selected Offset (pocket) from the Type drop-down menu:

   • To generate a spiral-style toolpath for better surface finish, select the Spiral checkbox.

   • To reduce sharp corners in the toolpath, increase the Smoothing Deviation slider.

8. If you selected Parallel from the Type drop-down menu:

   1. To manually specify the direction of the passes, from the Pass Direction drop-down menu, select Manual.

   2. With Manual selected, enter a Manual Pass Direction.

9. Set the Stepover to adjust the cut spacing. A smaller distance will create a smoother surface finish.

10. Click OK.

The toolpath is generated.